Home / 4,781.39-7,172.06-1,271.75

Finding the Fourth Proportional to 4,781.39, 7,172.06 and 1,271.75

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Solution

The fourth proportional to 4,781.39, 7,172.06 and 1,271.75 is: 1,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.39 : 7,172.06 = 1,271.75 : x
  2. Step 2: Convert to fraction form
    4,781.39/7,172.06 = 1,271.75/x
  3. Step 3: Cross multiply
    4,781.39x = 7,172.06 × 1,271.75
  4. Step 4: Simplify right side
    4,781.39x = 9,121,025.09
  5. Step 5: Solve for x
    x = 9,121,025.09/4,781.39
  6. Step 6: Final answer
    x = 1,907.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.